Vat-dyeing machine.



A. ASHWORTH.

VAT DYEING MACHINE.

APPLICATION FILED JULY 15, 1911.

1,52,399. Patented F61).4,1913

K v d a "/0 a 3 0 t witnesses x .5 X?

%K% M1" 4 w 5 aTATE PATENT @l lFl@Er ASHVJORTH, 0F BURY, ENGLAND venerated IXYEAOEINE.

To all whom it may concern Be itdniown that. l, ARTHUR Asuwoirrrr,

a subject of the King: of England, residing at Bury, Lancashire,England, have invented certain new and useful Improvements in Vat-Dyers Machines; and i do hereby declare the following to be a tuilu clear, and

exact dwcription of the invention, such as will enable others skill-ed in the art to which it appertains to make and use the same,

v This invention relates to dyeing apparatus, and more particularlyto the vats used in dyeing with indigo or similar vat colors, and has for its object to overcome the objections common in the handling oi such colors and to permit the indigo to be handled in a reduced condition.

Z-lnother object of the invention is to provide,a device whereby the dyeing process may be accomplished in considerably less time than is consumed in the old methods.

Another object of the invention is to provide a device inavhich the oxidation of the dyeing liquid is reduced to a minimum an practically avoided.

A further object of the invention is topro- Vide a dyeing vat with a sealed c0ve1"having a reduced inletopening through which the fabricis passed into the vat and a similar exitior the iabricso that when the vatis filled with dyeing liquid there is no space following specification. appended claims and for air to accumulate and oxidize the liquid. Further objects will be apparent from the metal as of common construction and secured to the bottom of said vat is a drain pipe 12 provided with the usual valve 13. The vet is provided. with a cover 14: in which there is an inlet for the fabric as shown at 15 and an exit as shown at 13,"'thcse two openings as shown in the drawings are provided with a wall thereahout which extends a slight-distance above the cover proper and above the inlet- 15 is a roller 17 positioned as to deliver the fabric as indicated by the dot and dash line through the opening 15 as to avoid any friction on the walls of the opening 15 which would tend to injure the Specification of Letters Eetent.

application iilcdaluly 15, ,911. Serial No. 638,678.

resented i eb.d,1t)13,

fabric. The roller 17 is mounted in bearings 18 securedto the cover of athe vat.

The fabric in passing through the vat containing the dyeing solution first passes between a pair or rollers 19 which are mount ed in brackets 20 on the opposite walls of the rat so astommoveany air which may have accumulated, in the fabric and the roll-, are 19 be mounted in slidable bearings having a spring to cause the rollers to bear firmly'againstone another or as I have shown. one of the rollers may be mounted in a bearing having a downwardly inclined face which causes the roller to bear against the other roller, the fabric then passing about a plurality of rollers 21 mounted in the opposite walls ofthe vat so as to cause the fabric to take an up and downward path through the-solution as shown in. the drawings until it passes about theroller. .22 of slightly greater diameter than the rollers ill when. it passes upwardly through exit 16 between rollers 23 and 2-1. The rollers 23 and 24 are slidably mounted brackets 25 secured to the-co-v'erot the vat andthe roller has a covering of hard rubber or the like so that as the fabric is passed bet-ween the rollers the excessive liquid is squeezed therefrom, and the adjustment of the roller 24: is obtained by the hand-wheel 26 secured to the screw 27' which is mounted in a cross arm 28 and bears against the yoke 29 at each end of which is a-further screw adjustment through the screws 30 which bear against the bearing blocks of the roller 24:. The fabric, on leaving the rollers 23 and 24, then passes about the roller 31,- which is mounted in bearings 32 secured to the brackets 25 and secured to the shaft 33 of the roller 23* through the exit 16 between the rollers 23 and 24 and over the roller 31 where it is exposed to the atmosphere for a short time and then finally passed through an oxidizing bath. The vat is filled with dyeing liquid so that no air is permitted to accu-v mulate therein and the only portions of the liquid exposed to the oxidizing action of the air is the small amount at the opening 15 and exit 16 and it Will be seen that the objections of the common methods are overcome by the exclusion of air from the vat.

In trea ing fabric in a damp state, I can fill the inlet and exit with an oil such as kerosene and thereby prevent even the oxidation of the dyeing solution about or Within these openings or in other Words hermetically seal the contents of the vat.

An important feature of my invention is the fact that the rollers 23 and 24 are m0unted horizontally in relation to each other and not superposed as they appear in machines now common for this purpose.

Having thus describedmy invention, I claim l 1. A vat for dyeing comprising a chamber having a sealed cover, a reduced inlet and exit in said cover, a pair of squeezing rollers below said inlet, to exclude all air from any fabric entering said vat, a plurality of guide rollers Within said vat and a second pair of squeezing rollersa ove said vat. I

2. A vat for dy ng comprising a chamberoutlet in said cover, a removable lid in said cover, rollers Within said chamber to remove any air from fabric passing through said chamber rollers Within said chamber to cause the fabric to take a prolonged course through said chamber and other rollers above said chamber to remove any excess liquid from a length of fabric passing through said chamber.

3. In a dyeing apparatusaa vat having a sealed cover, an inlet and outlet through said cover, a plurality of guiding rollers Within said vat, a pair of rollers mounted in said vat adjacent said inlet, the bearings of one of said rollers having inclined faces, and the roller mounted on said inclined faces impinging against the other rollers or an article thercbetween by gravity In testimony whereof I ailix my signature in presence of two Witnesses.

ARTHUR ASHWORTH.

Witnesses JOHN WILLIAM THOMAS, ERNOLD SIMPSON MOSELEY. 

